Ceramic chip antenna
First Claim
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1. A ceramic chip antenna, comprising:
- main body comprising first, second and third laminated dielectric body sheets;
first and second horizontal metallic patterns formed on an inner face of the second dielectric body sheet;
third and fourth horizontal metallic patterns formed on an inner face of the third dielectric body sheet, the third and fourth horizontal metallic patterns respectively corresponding to the first and second horizontal metallic patterns; and
first, second, third and fourth vertical metallic patterns formed on external side faces of the main body, the first, second, third and fourth vertical metallic patterns connecting the first and second horizontal metallic patterns and the corresponding third and fourth horizontal metallic patterns.
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Abstract
A ceramic chip antenna, which has a small size and a broad bandwidth, is provided. The ceramic chip antenna consists of a ceramic body with cuboid shape, a conductor wound helically inside the ceramic body, and signal-feed terminal formed on a surface of the ceramic body. The ceramic chip antenna with a helical conductor patterns formed in a symmetrical dipole shape is provided, which has a high gain value and excellent radiation characteristics. Also, it can be built-in inside a mobile terminal due to its small size. The ceramic chip antenna according to the present invention can have a broad bandwidth that satisfies the variable frequency of the present mobile communication system.
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Citations
10 Claims
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1. A ceramic chip antenna, comprising:
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main body comprising first, second and third laminated dielectric body sheets;
first and second horizontal metallic patterns formed on an inner face of the second dielectric body sheet;
third and fourth horizontal metallic patterns formed on an inner face of the third dielectric body sheet, the third and fourth horizontal metallic patterns respectively corresponding to the first and second horizontal metallic patterns; and
first, second, third and fourth vertical metallic patterns formed on external side faces of the main body, the first, second, third and fourth vertical metallic patterns connecting the first and second horizontal metallic patterns and the corresponding third and fourth horizontal metallic patterns. - View Dependent Claims (2, 3, 4)
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5. A ceramic chip dipole antenna, comprising:
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a main body comprising a plurality of dielectric sheets configured in a substantially vertical arrangement;
a first plurality of metallic patterns formed on horizontal surfaces of at least one dielectric sheet, the horizontal surfaces being internal to the main body; and
a second plurality of metallic patterns formed on vertical surfaces of at least one dielectric body sheet, the vertical surfaces coinciding with at least a portion of external surfaces of the main body, the second plurality of metallic patterns connecting the first plurality of metallic patterns to form the dipole antenna. - View Dependent Claims (6, 7, 8, 9)
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10. A symmetrical dipole antenna, comprising:
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a main body of a ceramic chip comprising a plurality of laminated dielectric sheets;
a first plurality of metallic patterns provided on surfaces of the dielectric sheets internal of the main body;
a second plurality of metallic patterns provided on surfaces of the dielectric sheets external of the main body, the second plurality of metallic patterns connecting the first plurality of metallic patterns to form a helical pattern.
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Specification